Atlas of Ophthalmology

Marcus-Gunn Jaw-Winking, Congenital Trigemino-oculomotor Synkinesis

Marcus-Gunn Jaw-Winking, Congenital Trigemino-oculomotor Synkinesis
Moderate unilateral upper eyelid ptosis is present on the left. When the patient opens his mouth, the left upper eyelid elevates, producing substantial resolution of the baseline ptosis. This phenomenon is known as Marcus- Gunn jaw-winking. It represents misinnervation of the levator muscle by fibers of the trigeminal nerve that originally were destined to innervate the pterygoid muscles.
Meyer, HJ., Prof. Dr. med., Osnabrueck, Germany
Q07.8
Congenital Syndromes, Malformations and Abnomalities -> Congenital Malformation of Nervous System
3920
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